Hello.
I went ahead and wrestled with the case on my own VA912b, and got it open. We ordered a replacement, but I thought it'd be nice to have a backup monitor.
I took careful note of the following thread:
https://www.badcaps.net/forum/showthread.php?t=6740
where PCBONEZ suggested the following:
From what I can tell, all of them are bulging except for the large 100uF 400v and the 22uF 50v. So I'll be ordering those, assuming the above references at still good, or this guide by PlainBill: https://www.badcaps.net/forum/showpo...5&postcount=11
However, my question comes from something else I noticed during my visual inspection...
I included a picture and circled it with red... I apologize for the bad lighting, however I've noticed in other pictures from people with VA912bs, that the orange gunk on top of that square component is smooth...
https://www.badcaps.net/forum/attach...8&d=1237615886
https://www.badcaps.net/forum/attach...2&d=1224960231
... While mine is sort of goopy, almost as if it's removed or somehow used up, and some of it has clumped up on the side (Still inside the square component, but on the side of whatever is in the middle of it).
I'm curious if this is abnormal, or is showing signs of decay. Or if it's something I don't need to be worried about. Also, what is that component called anyway? >,>
Much appreciated.
- Beau
I went ahead and wrestled with the case on my own VA912b, and got it open. We ordered a replacement, but I thought it'd be nice to have a backup monitor.
I took careful note of the following thread:
https://www.badcaps.net/forum/showthread.php?t=6740
where PCBONEZ suggested the following:
In KF series -> Ripple/ESR:
470uF 25V -> 1200/0.065
470uF 10V -> 580/0.250
22uF 50V -> 135/1.350
100uF 400V -> 950/0.520
Ripple is in mA at 105C and 100KHz -and- ESR is Ohms at 20C and 100KHz.
[Like they are supposed to be.]
If you go to Digikey, out of what they stock, you will need either Chemicon KZE or Panasonic FM to meet or beat those specs.
The 400v may be an exception. There are some series' that only come in higher volts and I dunno all of those off the top of my head. Probably don't need to replace that one anyway.
470uF 25V -> 1200/0.065
470uF 10V -> 580/0.250
22uF 50V -> 135/1.350
100uF 400V -> 950/0.520
Ripple is in mA at 105C and 100KHz -and- ESR is Ohms at 20C and 100KHz.
[Like they are supposed to be.]
If you go to Digikey, out of what they stock, you will need either Chemicon KZE or Panasonic FM to meet or beat those specs.
The 400v may be an exception. There are some series' that only come in higher volts and I dunno all of those off the top of my head. Probably don't need to replace that one anyway.
However, my question comes from something else I noticed during my visual inspection...
I included a picture and circled it with red... I apologize for the bad lighting, however I've noticed in other pictures from people with VA912bs, that the orange gunk on top of that square component is smooth...
https://www.badcaps.net/forum/attach...8&d=1237615886
https://www.badcaps.net/forum/attach...2&d=1224960231
... While mine is sort of goopy, almost as if it's removed or somehow used up, and some of it has clumped up on the side (Still inside the square component, but on the side of whatever is in the middle of it).
I'm curious if this is abnormal, or is showing signs of decay. Or if it's something I don't need to be worried about. Also, what is that component called anyway? >,>
Much appreciated.
- Beau
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